Learn Russian: Каждый день парикмахер берёт расчёску и стрижёт волосы. - Every day the hairdresser takes a comb and cuts hair.

In Russian, to express that something happens 'every' time period, you simply use the word каждый and the noun in the Accusative case, with no preposition. Because день is a masculine inanimate noun, its Accusative form looks exactly like its Nominative (dictionary) form.

Why does расчёску change its ending to -у, but волосы stays the same?

Both are direct objects in the Accusative case, but they follow different rules. The word for comb (расчёска) is a feminine singular noun, so its ending changes from -а to -у. The word for hair (волосы) is plural and inanimate, so its Accusative form looks identical to its dictionary form.

The verb берёт (takes) looks quite different from its infinitive. What is the dictionary form?

The infinitive is брать. It is an irregular verb that changes its stem when conjugated. It drops the -а- and adds an -е-, giving us forms like я беру, ты берёшь, and он берёт.

What is the dictionary form of the verb стрижёт (cuts)?

The infinitive is стричь. Verbs ending in -чь belong to a special group that often have consonant changes in their stem. For this verb, the stem changes to include a -ж- or -г- depending on who is doing the action, which is why we get он стрижёт.